State Highway Network Postmiles Tenth

• Published by: Caltrans
• Last updated: Tuesday, October 21, 2025
• File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Postmiles are valid postmile points at 0.1 (1/10th) mile intervals, based on the Caltrans Linear Referencing System. Exceptions that are included are ...